HC32L15xx开发板的UART问题

只看该作者 · 2020-3-3 15:28

本帖最后由 crystal001 于 2020-3-3 15:30 编辑

求助大神们
问题描述：
串口收发测试，中断接收，轮询发送，测试过程中，接收正常，但是发送不出数据。单收和单发都正常。
原理图：串口使用PIN59和PIN60

代码如下：
#include "uart.h"
#include "gpio.h"
#include "clk.h"

uint8_t u8TxData[10] = {1,2,3,4,5,6,7,8,9,10};//"HUADA MCU!";
uint8_t u8RxData[10];
uint8_t u8TxCnt = 0, u8RxCnt = 0;
uint8_t u8Cnt = 0;

#define UARTRX  UARTCH6
#define UARTTX  UARTCH6

static void UartIoConfig(void)
{
Gpio_SetFunc_SIN6_0(x);
Gpio_SetFunc_SOT6_0(x);
      M0P_GPIO->FN_SEL08_f.SCS60B  = 1;
}

void RxIntCallback(void)
{
u8RxData[u8RxCnt] = Uart_ReceiveData(UARTRX);
u8RxCnt++;

      Uart_DisableIrq(UARTRX, UartRxIrq);
      Uart_SendData(UARTTX, u8TxData[u8Cnt]);
      if(u8Cnt<10)
      {
            u8Cnt++;
      }
      else u8Cnt=0;
      delay1ms(1);
      Uart_EnableIrq(UARTRX, UartRxIrq);
}

int32_t main(void)
{
stc_uart_config_t stcUartTxConfig;
stc_uart_config_t stcUartRxConfig;
stc_uart_irq_cb_t  stcUartRxIrqCb;

DDL_ZERO_STRUCT(stcUartTxConfig);
DDL_ZERO_STRUCT(stcUartRxConfig);

DDL_ZERO_STRUCT(stcUartRxIrqCb);

/* Config the UART IO */
UartIoConfig();

/* Init the UART */
stcUartRxIrqCb.pfnRxIrqCb = RxIntCallback;

/* Config the UARTTX */
      stcUartTxConfig.bCarryEnable = FALSE;
stcUartTxConfig.bCarryPolarity = TRUE;
stcUartTxConfig.bCompensation = TRUE;
stcUartTxConfig.bCtsWu = FALSE;
stcUartTxConfig.bHwFlow = FALSE;
stcUartTxConfig.bInvertData = FALSE;
stcUartTxConfig.bTouchNvic = FALSE;
stcUartTxConfig.bUseExtClk = FALSE;
stcUartTxConfig.enBitDirection = UartDataLsbFirst;
stcUartTxConfig.enDataLength = UartEightBits;
stcUartTxConfig.enMode = UartNormal;
stcUartTxConfig.enParity = UartParityNone;
stcUartTxConfig.enStopBit = UartOneStopBit;
stcUartTxConfig.u32BaudRate = 115200;

Uart_Init(UARTTX, &stcUartTxConfig);

Uart_EnableFunc(UARTTX, UartTx);

/* Config the UARTRX */
stcUartRxConfig.bCarryEnable = FALSE;
stcUartRxConfig.bCarryPolarity = FALSE;
stcUartRxConfig.bCompensation = FALSE;
stcUartRxConfig.bCtsWu = FALSE;
stcUartRxConfig.bHwFlow = FALSE;
stcUartRxConfig.bInvertData = FALSE;
stcUartRxConfig.bTouchNvic = TRUE;
stcUartRxConfig.bUseExtClk = FALSE;
stcUartRxConfig.enBitDirection = UartDataLsbFirst;
stcUartRxConfig.enDataLength = UartEightBits;
stcUartRxConfig.enMode = UartNormal;
stcUartRxConfig.enParity = UartParityNone;
stcUartRxConfig.enStopBit = UartOneStopBit;
stcUartRxConfig.u32BaudRate = 115200;
stcUartRxConfig.pstcIrqCb = &stcUartRxIrqCb;

Uart_Init(UARTRX, &stcUartRxConfig);

Uart_EnableFunc(UARTRX, UartRx);

/* Configure interrupt */
Uart_EnableIrq(UARTRX, UartRxIrq);

while(1)
      {
            Uart_SendData(UARTTX, u8TxData[u8Cnt]);
            if(u8Cnt<10)
            {
                     u8Cnt++;
            }
            else u8Cnt=0;
            delay1ms(1);
      }
}